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Technical Papers 2024
Technical papers, application notes and case studies from laboratory, chemistry, life science and quality control
Solubility: Importance, Measurements and Applications
Dr. Carmen Guguta, Technobis
The trend towards more complex molecules, materials and systems brings new crystallization challenges for products such as pharmaceuticals. The solution to these challenges lies in a fundamental understanding of solubility - the driving force - and crystallization kinetics onto which we can build...
Dr. Carmen Guguta, Technobis
The trend towards more complex molecules, materials and systems brings new crystallization challenges for products such as pharmaceuticals. The solution to these challenges lies in a fundamental understanding of solubility - the driving force - and crystallization kinetics onto which we can build...
Spectroscopic Insights into Biorefineries - A demand for process analytics in bioeconomy
Dr. Alexander Echtermeyer, S-PACT
The transition from a fossil-based chemical industry to a circular, sustainable bioeconomy is one of the crucial steps towards a sustainable future economy. Closed carbon cycles must be established, i.e., by chemical utilization of biogenic raw and residual materials. This can be achieved with...
Dr. Alexander Echtermeyer, S-PACT
The transition from a fossil-based chemical industry to a circular, sustainable bioeconomy is one of the crucial steps towards a sustainable future economy. Closed carbon cycles must be established, i.e., by chemical utilization of biogenic raw and residual materials. This can be achieved with...
Determining interfacial tension from an immiscible water-oil system to the ultralow interfacial tension of a microemulsion
Ming Jin, Maria Mihhailova, Stefan Benn et al., Krüss GmbH
In industrial applications such as enhanced oil recovery (EOR), pharmaceutics, or cosmetics, it is often necessary to mobilize and transport hydrophobic substances in aqueous media. The ideal way to do this is to form a microemulsion, i.e. a thermodynamically stable dispersion. When trying to syn...
Ming Jin, Maria Mihhailova, Stefan Benn et al., Krüss GmbH
In industrial applications such as enhanced oil recovery (EOR), pharmaceutics, or cosmetics, it is often necessary to mobilize and transport hydrophobic substances in aqueous media. The ideal way to do this is to form a microemulsion, i.e. a thermodynamically stable dispersion. When trying to syn...
Fake DNA in your qPCR? Comparative evaluation of leaching levels in PCR plates
Rafal Grzeskowiak, Eppendorf SE, Sandrine Hamels, Eric Gancarek, Eppendorf Application Technologies S.A.
This study provides a comparative analysis of UV-absorbing leachables and qPCR fluorescence signals of water samples cycled in PCR plates from several manufacturers. The observed leaching levels and resulting false DNA concentrations were considerably high and varied markedly in the majority of t...
Rafal Grzeskowiak, Eppendorf SE, Sandrine Hamels, Eric Gancarek, Eppendorf Application Technologies S.A.
This study provides a comparative analysis of UV-absorbing leachables and qPCR fluorescence signals of water samples cycled in PCR plates from several manufacturers. The observed leaching levels and resulting false DNA concentrations were considerably high and varied markedly in the majority of t...
Wetting and roughness - What to do if Wenzel does not work? How contact angle measurements and confocal microscopy can provide an empirical solution
Patrick Swolana et al., Krüss GmbH
Dr. Christoph Weigel et al., 5microns GmbH
The fact that the roughness of a surface can influence its wetting behavior is well known and described by Wenzel in his theory with a simple equation. But how well can this theory be transferred to industrial practice? We did the test and microstructured silicon wafers very precisely by reactive...
Patrick Swolana et al., Krüss GmbH
Dr. Christoph Weigel et al., 5microns GmbH
The fact that the roughness of a surface can influence its wetting behavior is well known and described by Wenzel in his theory with a simple equation. But how well can this theory be transferred to industrial practice? We did the test and microstructured silicon wafers very precisely by reactive...
Assessment of the Feasibility of 2- and 3-Layer Measurements by Means of LFA
Fabia Beckstein, NETZSCH Gerätebau GmbH
Determination of the thermal conductivity of multi-layer samples is a challenge not only for the measuring technology, but also for the operator. The Proteus® LFA soft- ware offers the possibility of measuring 2- and 3-layer samples. The analysis is carried out according to Hartmann [1] up to Pro...
Fabia Beckstein, NETZSCH Gerätebau GmbH
Determination of the thermal conductivity of multi-layer samples is a challenge not only for the measuring technology, but also for the operator. The Proteus® LFA soft- ware offers the possibility of measuring 2- and 3-layer samples. The analysis is carried out according to Hartmann [1] up to Pro...
Comparison of the Cytotoxicity and Leaching Effects between different pipette tips
Jana Schmidt, Eppendorf SE
Estelle Deboever, Eppendorf Application Technologies S.A.
Jean-Francois Hoet, Eppendorf Core Test Lab
A pipette and a pipette tip comprise a system which ensures precise results in any laboratory procedure involving liquid handling steps. Whereas the pipette can be used for years, the plastic tip belongs to the single-use consumables which contribute to laboratory waste, and which must be taken i...
Jana Schmidt, Eppendorf SE
Estelle Deboever, Eppendorf Application Technologies S.A.
Jean-Francois Hoet, Eppendorf Core Test Lab
A pipette and a pipette tip comprise a system which ensures precise results in any laboratory procedure involving liquid handling steps. Whereas the pipette can be used for years, the plastic tip belongs to the single-use consumables which contribute to laboratory waste, and which must be taken i...